Verse 20

इति चेद्भवता राम नैपुण्येनावधारितम् ।प्रमाणपरिशुद्धेन चेतसा च विचारितम्

In plain words

If, Rāma, all this has been ascertained by you with skill, and weighed with a mind purified by right pramāṇa —